// eslint-disable-next-line
import * as loginService from '@/api/user'
// eslint-disable-next-line
import { BasicLayout, BlankLayout, PageView, RouteView } from '@/layouts'

// 前端路由表
const constantRouterComponents = {
  // 基础页面 layout 必须引入
  BasicLayout: BasicLayout,
  BlankLayout: BlankLayout,
  RouteView: RouteView,
  PageView: PageView,

  // 工作总览
  'Workplace': () => import('@/views/dashboard/Workplace'),
  // 审批
  'CheckContract': () => import('@/views/contract/CheckContract'),
  'AbandonContract': () => import('@/views/contract/AbandonContract'),
  'RefundContract': () => import('@/views/contract/RefundContract'),
  'ContractDetail': () => import('@/views/contract/ContractDetail'),
  'BusinessDetail': () => import('@/views/contract/BusinessDetail'),
  'FcgBusiness': () => import('@/views/contract/FcgBusiness'),
  // 发票
  'CheckInvoiceList': () => import('@/views/invoice/CheckInvoiceList'),
  'InvoiceList': () => import('@/views/invoice/InvoiceList'),
  'RefuseInvoiceList': () => import('@/views/invoice/RefuseInvoiceList'),
  'InvoiceDetail': () => import('@/views/invoice/InvoiceDetail'),
  'InvoiceSetting': () => import('@/views/invoice/InvoiceSetting'),
  // 业务
  'BusinessList': () => import('@/views/business/BusinessList'),
  // 统计
  'StatsData': () => import('@/views/stats/StatsData'),
  'StatsInvoice': () => import('@/views/stats/StatsInvoice'),
  'StatsCost': () => import('@/views/stats/StatsCost'),
  'StatsAgency': () => import('@/views/stats/StatsAgency'),
  'StatsBusiness': () => import('@/views/stats/StatsBusiness'),
  // 消息管理
  'MessageList': () => import('@/views/message/MessageList'),
  'MessageAdd': () => import('@/views/message/MessageAdd'),
  'MessageEdit': () => import('@/views/message/MessageEdit'),
  // 其他
  'ChangePassword': () => import('@/views/other/ChangePassword'),
  'AccountSetting': () => import('@/views/other/AccountSetting')
}

// 前端未找到页面路由（固定不用改）
const notFoundRouter = {
  path: '*', redirect: '/404', hidden: true
}

// 根级菜单
const rootRouter = {
  name: 'index',
  path: '/',
  component: 'BasicLayout',
  redirect: '/dashboard',
  meta: {
    title: '首页'
  },
  children: []
}

/**
 * 动态生成菜单
 * @param token
 * @returns {Promise<Router>}
 */
export const generatorDynamicRouter = (token) => {
  return new Promise((resolve, reject) => {
    loginService.getNav(token).then(res => {
      const result = res.result.antd_menus
      const menuNav = []
      rootRouter.children = result
      menuNav.push(rootRouter)
      const routers = generator(menuNav)
      routers.push(notFoundRouter)
      resolve(routers)
    }).catch(err => {
      reject(err)
    })
  })
}

/**
 * 格式化树形结构数据 生成 vue-router 层级路由表
 *
 * @param routerMap
 * @param parent
 * @returns {*}
 */
export const generator = (routerMap, parent) => {
  return routerMap.map(item => {
    const { title, show, hideChildren, hiddenHeaderContent, target, icon } = item.meta || {}
    const currentRouter = {
      // 如果路由设置了 path，则作为默认 path，否则 路由地址 动态拼接生成如 /dashboard/workplace
      path: item.path || `${parent && parent.path || ''}/${item.key}`,
      // 路由名称，建议唯一
      name: item.name || item.key || '',
      // 该路由对应页面的 组件 :方案1
      // component: constantRouterComponents[item.component || item.key],
      // 该路由对应页面的 组件 :方案2 (动态加载)
      component: (constantRouterComponents[item.component || item.key]) || (() => import(`@/views/${item.component}`)),

      // meta: 页面标题, 菜单图标, 页面权限(供指令权限用，可去掉)
      meta: {
        title: title,
        icon: icon || undefined,
        hiddenHeaderContent: hiddenHeaderContent,
        target: target
      }
    }
    // 是否设置了隐藏菜单
    if (show === false) {
      currentRouter.hidden = true
    }
    // 是否设置了隐藏子菜单
    if (hideChildren) {
      currentRouter.hideChildrenInMenu = true
    }
    // 为了防止出现后端返回结果不规范，处理有可能出现拼接出两个 反斜杠
    if (!currentRouter.path.startsWith('http')) {
      currentRouter.path = currentRouter.path.replace('//', '/')
    }
    // 重定向
    item.redirect && (currentRouter.redirect = item.redirect)
    // 是否有子菜单，并递归处理
    if (item.children && item.children.length > 0) {
      // Recursion
      currentRouter.children = generator(item.children, currentRouter)
    }
    return currentRouter
  })
}
